Comparison study on dye degradation by PDA-SF/AgNPs-H2O2 and PDA-SF/AgNPs-PMS catalytic system

Aijing Li; Xinpeng Chen; Ping Yao; Jun Zhang; Tieling Xing; Guoqiang Chen

Arabian Journal of Chemistry (Oct 2023)

Comparison study on dye degradation by PDA-SF/AgNPs-H2O2 and PDA-SF/AgNPs-PMS catalytic system

Aijing Li,
Xinpeng Chen,
Ping Yao,
Jun Zhang,
Tieling Xing,
Guoqiang Chen

Affiliations

Aijing Li: College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China
Xinpeng Chen: College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China
Ping Yao: Suzhou Institute of Trade and Commerce, Suzhou 215009, China
Jun Zhang: Suzhou Institute of Trade and Commerce, Suzhou 215009, China
Tieling Xing: College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China; Corresponding author.
Guoqiang Chen: College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China

Journal volume & issue: Vol. 16, no. 10
p. 105167

Abstract

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In this work, polydopamine (PDA) was used to facilitate the reduction of silver nitrate (AgNO3) to silver nanoparticles (AgNPs) and the simultaneous loading on waste silk fabrics (PDA-SF/AgNPs). The removal activity of the obtained composite PDA-SF/AgNPs on different dyes in the presence of hydrogen peroxide (H2O2) and potassium peroxymonosulfate (PMS) was compared. The effects of reaction temperature, H2O2/PMS dosage, dye concentration, composite dosage, electrolyte concentration and time in two catalyst systems on the dye removal were discussed. The results showed the dye removal of Telon Red A2R reached 81% and 95% in 30–50 min in PDA-SF/AgNPs-H2O2 and PDA-SF/AgNPs-PMS system, respectively. Quenching experiments demonstrated that ·OH, ·O2– and SO4-· were produced during the degradation process, and the possible degradation pathway of Telon Red A2R were analyzed by HPLC-MS. In addition, the kinetic study indicated that the removal of dye followed quasi-second-order adsorption kinetics. These findings suggest that fabric-based composites have great potential and applications in catalysis and treatment of wastewater.

Published in Arabian Journal of Chemistry

ISSN: 1878-5352 (Print)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: http://www.journals.elsevier.com/arabian-journal-of-chemistry/

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